Electromagnetic control assembly and method for a viscous fluid fan clutch
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United States of America Patent
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-
Jan 16, 1990
Grant Date -
N/A
app pub date -
May 22, 1989
filing date -
May 22, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fan clutch assembly for a vehicle includes an electromagnetic control assembly for actuating a rotatable valve plate. A rotatable shaft is connected to the valve plate. A ferromagnetic element is slidably mounted on the shaft. When an electromagnetic coil is energized, the resulting flux attracts the ferromagnetic element. As the ferromagnetic element slides, it is rotated to cause rotation of the shaft, thereby opening the valve plate.
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